Mezzo-soprano Stacey Rishoi will perform in the finale of Artist Series Concerts of Sarasota's 2018-19 season, 'An Afternoon of Operetta,' on May 12, 2019. 'An Afternoon of Operetta' will feature a condensed concert version of Gilbert and Sullivan's The Pirates of Penzance, as well as selections from operettas by Offenbach and von Suppé.